Freshwater ground penetrating radar the significance of seasonal temperature variation
2010
Relatively high temperatures cause an increase in molecular motion as a result of weaker hydrogen bonding and a reduction in the tetrahedral geometry which in turn leads to depolarisation. Therefore a reduction in temperature aids the radar efficiency in several ways, increases the dielectric constant, reduces the velocity of the EM wave and reduces the effect of molecular vibration as a result of stronger bonds causing a reduction in depolarisation i.e. more efficient polarisation.
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